From owner-freebsd-acpi@FreeBSD.ORG Mon Dec 22 21:15:52 2008 Return-Path: Delivered-To: acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0DF431065673 for ; Mon, 22 Dec 2008 21:15:52 +0000 (UTC) (envelope-from yanefbsd@gmail.com) Received: from rv-out-0506.google.com (rv-out-0506.google.com [209.85.198.234]) by mx1.freebsd.org (Postfix) with ESMTP id D34A58FC1A for ; Mon, 22 Dec 2008 21:15:51 +0000 (UTC) (envelope-from yanefbsd@gmail.com) Received: by rv-out-0506.google.com with SMTP id f9so3200302rvb.5 for ; Mon, 22 Dec 2008 13:15:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=MJvXEf9axgdin5OEGFXUsl7lbd8hzprBaCpms90xEIo=; b=wDiLCURzheShmqc6A4wsw0/hJPV4OECOp8mTIa7j7nkOej4OkLi/f3M7O1XsSHIhmh 77TuMFLMvCJduUt0BKAaLXH2hA6o4krf8YiWknhZXGFkApd1BwQEXFRvZLK9HDLolbuu fyXB4tPkSR692epolxcI5ZvilZ31qjdurKyRc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=boZvlrF7ASp6SUQSOR+L2HiivUovx87NtksCwmcxxKS9pGjcIDexiY6f+7WPcM+XoK GDSfKx40QMrWZMvL9M2ecoefUc53A8qErukEDOsMlsTvth8n5AeMYtrsCuKE3KLQsOOI oVnsp3sEV6QLjlk8O23uMR4pNF9EqqpNVW8dA= Received: by 10.141.97.5 with SMTP id z5mr3348588rvl.269.1229980551514; Mon, 22 Dec 2008 13:15:51 -0800 (PST) Received: by 10.140.135.2 with HTTP; Mon, 22 Dec 2008 13:15:51 -0800 (PST) Message-ID: <7d6fde3d0812221315s4d03e15dw4b84679b98a6308f@mail.gmail.com> Date: Mon, 22 Dec 2008 13:15:51 -0800 From: "Garrett Cooper" To: "David van Kuijk" In-Reply-To: <49500088.2080609@bigfoot.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20081221233822.7E92545020@ptavv.es.net> <49500088.2080609@bigfoot.com> Cc: acpi Subject: Re: Problem on AMD64 X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Dec 2008 21:15:52 -0000 On 12/22/08, David van Kuijk wrote: > OK, thanks again. I didn't know those tools. est is not supported om > AMD64, but I will start experimenting with powerd. > > The main thing I want to accomplish is to lower my energy bill after I > found out my server is costing me 50 cents a day of electricity. So any > other ideas (besides powering off ;-) are welcome... > > Regards, > David > > Kevin Oberman wrote: >>> Date: Sun, 21 Dec 2008 22:31:04 +0100 >>> From: David van Kuijk >>> Sender: owner-freebsd-acpi@freebsd.org >>> >>> Thanks for the responses so far. >>> >>> I would be happy with S3. I am however a little confused about the >>> abilities of my server as reported by sysctl hw.acpi. >>> >>> As commented below this line suggests that no other states than S4/S5 >>> are supported: >>> hw.acpi.supported_sleep_state: S4 S5 >>> >>> But this is also listed: >>> hw.acpi.standby_state: S1 >>> hw.acpi.suspend_state: S3 >>> >>> Are these last two overridden by the first, meaning that S3 is not >>> available from my BIOS??? >> >> Yes. FreeBSD, by default, sets up standby as S1 and suspend to S3 because >> almost all BIOSes support these states. Yours is the first BIOS I have >> seen that does not do S1. That is really odd. >> >> In any case, you have no available ways to cut power when your system is >> really idle other than powering off. Of course, you may be able to do >> some power saving with powerd and EST if your BIOS and CPU support those. Look into the following sysctls: hw.acpi.cpu.cx_lowest hw.acpi.cpu.cx_highest Unfortunately [for you] est and PT4CC are completely Intel specific power regulation interfaces. AMD had something to offer on Linux, but I forget what that was... Cheers, -Garrett